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Twist drill
A drill made by twisting a length of steel of rectangular or oval section into a spiral form, hence the term twist drill. Many hand-operated coal drills are of this type, and the rotation of the drill spiral removes the cuttings from the hole.
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- Part of Speech: noun
- Synonym(s):
- Blossary:
- Industry/Domain: Mining
- Category: General mining; Mineral mining
- Government Agency: USBM
- Product: Dictionary of Mining, Mineral, & Related Terms - 2nd Edition
- Acronym-Abbreviation:
Other Languages:
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